| 壬基酚聚氧乙烯醚在印染废水处理工艺中的去除研究 |
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| 引用本文： | 周自坚,虢清伟,王丽,易皓,许振成.壬基酚聚氧乙烯醚在印染废水处理工艺中的去除研究[J].环境工程学报,2014,8(8):3107-3113. |
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| 作者姓名： | 周自坚 虢清伟 王丽 易皓 许振成 |
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| 作者单位： | 1. 湖南农业大学资源与环境学院, 长沙 410128;2. 环境保护部华南环境科学研究所, 广州 510655;3. 桂林理工大学环境科学与工程学院, 桂林 541004;2. 环境保护部华南环境科学研究所, 广州 510655;2. 环境保护部华南环境科学研究所, 广州 510655;2. 环境保护部华南环境科学研究所, 广州 510655;2. 环境保护部华南环境科学研究所, 广州 510655 |
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| 基金项目： | 国家“水体污染控制与治理”科技重大专项（2012ZX07206-002） |
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| 摘 要： | 为减少印染助剂壬基酚聚氧乙烯醚(nonylphenol ethoxylates,NPEO)及其降解产物壬基酚(nonylphenol,NP)随印染废水进入水体造成的不利环境影响,对2种常规印染废水处理净水工艺处理含NPEO的模拟印染废水效率开展了研究。研究发现,结合厌氧水解和曝气氧化的生物处理工艺能迅速地将废水中NPEO去除,去除率达到90%以上,但排水中残余一定含量的NP、短链NPEO和短链壬基酚聚氧乙烯醚酸酯(nonylphenol polyethoxycarboxylate,NPEC),在减少排水中NP、短链NPEO和短链NPEC浓度方面,接触氧化法比活性污泥法效果更好。排水中的NP和短链NPEO来自厌氧水解阶段长链NPEO的降解;减少排水中NP、短链NPEO需要减少厌氧水解阶段产生的短链NPEO。
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| 关 键 词： | 壬基酚聚氧乙烯醚 印染废水 厌氧水解 好氧曝气 |
Elimination of nonylphenol ethoxylates and its biodegrading products from dyeing wastewater |
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| Zhou Zijian,Guo Qingwei,Wang Li,Yi Hao and Xu Zhencheng.Elimination of nonylphenol ethoxylates and its biodegrading products from dyeing wastewater[J].Techniques and Equipment for Environmental Pollution Control,2014,8(8):3107-3113. |
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| Authors: | Zhou Zijian Guo Qingwei Wang Li Yi Hao and Xu Zhencheng |
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| Institution: | 1. School of Resources and Environment, Hunan Agricultural University, Changsha 410128, China;2. South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;3. School of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;2. South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;2. South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;2. South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;2. South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China |
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| Abstract: | The elimination of nonylphenol ethoxylates (NPEOs) and its biodegrading products from simulating dyeing wastewater during two typical treatment methods was studied. It was found that NPEOs could be removed from the influent with a removal rate above 90% in both methods. The method combined with the contact oxidation unit achieved more efficient results than that combined with aerobic active sludge unit. Fewer products of nonylphenol (NP), NPEOs and nonylphenol polyethoxycarboxylates (NPECs) binding 1 to 3 ethylene oxide molecule were found in the effluent from former method. NP and NPEOs of low molecule weight mainly came from the anaerobic hydrolysis units before the aerobic tanks. To lower their concentration in the final effluent, NP and NPEOs produced in the anaerobic unit should be lowered. |
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| Keywords: | nonylphenol ethoxylates dyeing wastewater anaerobic hydrolysis process aeration process |
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